Refers to the tree species Juniperus chinensis. The name 伊吹 refers to Mount Ibuki, where the tree is found.
See also: イブキ
庭にイブキビャクシンを植えた。
I planted a Chinese juniper in the garden.
ビャクシン is a broader term for juniper, while イブキビャクシン specifically refers to the Chinese juniper (Juniperus chinensis).
Kanji spelling; usually written in kana.
Katakana spelling is common for plant names; usually written in kana.
The name combines 伊吹 (Ibuki, referring to Mount Ibuki) and 柏槙 (ビャクシン, juniper). The exact historical derivation is uncertain, but the spelling is conventionally associated with the plant.